Buckle



FIG. 1 is a perspective view of a buckle showing the claimed design;

FIG. 2 is another perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view of thereof;

FIG. 5 is a left side elevational view of thereof;

FIG. 6 is a right side elevational view of thereof;

FIG. 7 is a top plan view of thereof;

FIG. 8 is a bottom plan view of thereof; and,

FIG. 9 is perspective view showing the buckle in a usage state.

The broken lines and unshaded areas adjacent to shaded areas represent environmental subject matter that forms no part of the claimed design. 

CLAIM The ornamental design for a buckle, as shown and described. 